Here's some Win Skin Installers you can try that will change the icons without having to manually copy folders.

Biab Skin Installers.
Extract Biab Skin Installers folder from the zip to anywhere you like.
You will need to run your chosen skin installer after installing any Biab updates.
Run the Biab Original Skin Installer.exe to restore.

https://www.dropbox.com/s/8nhvfbh94ptws1o/Biab-Skin-Installers.zip?dl=1
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